Not if you've bought it as a houseplant and you're not going to eat it - if its outside, the winter will kill it anyway, it's grown as an annual here. Unless you've actually bought Fatsia japonica, which is hardy outside and non poisonous

Thanks Bamboo,

I already have a Fatsia in the garden.

I will probably over winter it in the greenhouse and let her go outside next year. It's only a foot tall atm, so i will wait then.

Thank you,

Andy

If it flowers, remove any seeds which appear - the coating of those is particularly poisonous.

On the other hand, they are good for mole, vole, and gopher control if cracked and scattered around--rarely kills them, just makes them find somewhere else to live. Do keep away from children and pets, though!